Test results show that on the first ECON 225 exam 40% of the class received either a B or better. If three students were selected at random what is the probability that all three of them received a B or better.

Q: skittle on the second

A: Candies Blue 15 Orange 16 Yellow 12 Red 14 Green 5 Total candies are 62 Conditional…

Q: Suppose a basketball player makes 56.1% of shots and that the probabilty of making each shot is…

A:

Q: According to a study, 85% of K-12 schools or districts in a country use digital content such as…

A: From the provided information, 85% of K-12 schools or districts in a country use digital content.…

Q: If 50 of 250 people contacted make a donation to the city symphony, the probability of outcome of…

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Q: A survey shows that about 65% of all respondents chose to have dogs over cats. Suppose that 15…

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Q: If a seed is planted, it has a 75% chance of growing into a healthy plant.If 12 seeds are planted,…

A: The objective of this question is to find the probability that exactly 2 out of 12 seeds do not grow…

Q: About 7% of employed adults in the United States have multiple jobs. A random sample a 71 employed…

A: The sample size is 347, and population proportion is 0.07. Checking conditions:…

Q: If a seed is planted, it has a 85% chance of growing into a healthy plant. If 7 seeds are planted,…

A:

Q: If the probability that an individual with a Bachelor Degree in Underwater Basket-weaving will be…

A: Given that the probability that an individual with a Bachelor Degree in Underwater Basket-weaving…

Q: If the probability that an individual with a Bachelor Degree in Underwater Basket-weaving will be…

A: Given Data: P( individual will be hired)=0.77

Q: If a seed is planted, it has a 75% chance of growing into a healthy plant. If 6 seeds are planted,…

A: From the provided information, If a seed is planted, it has a 75% chance of growing into a healthy…

Q: A ballon at a party pops when kids play with it with probability 0.40. What are the probability the…

A: Solution: From the given information, probability of a balloon at a party pops when kids play is…

Q: If a seed is planted, it has a 90% chance of growing into a healthy plant. If 12 seeds are planted,…

A: Given that if a seed is planted, the chance of growing into a healthy plant is 90%.

Q: Randomly select and test 56 batteries and determine whether each is within specifications. The…

A: From the provided information, Sample size (n) = 56 A shipment contains 3000 batteries and 1% of…

Q: f a seed is planted, it has a 75% chance of growing into a healthy plant. If 12 seeds are planted,…

A: Probability of growing  into a healthy plant when a seed is planted=0.75Sample size(n)=12

Q: In a study done in my chicken coop, 82% of my birds enjoy eating earwimgs. Chose 7 at random. FIND…

A: The provided information are: Probability of success (p)  = 82% = 0.82 Number of birds chosen (n) =…

Q: A place kicker in pro football has a 77%  probability of making a field goal over 40 yd and each of…

A: Probability is the chance of occurence of particular event will happen. Probability always lies…

Q: If 11 seeds are planted, what is the probability that exactly 4 don't grow?

A:

Q: At the cartons  produced by a company 3% have a puncture 6% have a smashed corner and 0.4% have both…

A: Given that , cartons produced by a company, 3% have a puncture, 6% have a smashed corner, and 0.4 %…

Q: a seed is planted and has 75% chance of growing and 9 seeds are planted what is the probability that…

A: If a seed is planted and has a 75% chance of growing. Thus, Chance of not growing = 1-0.75 = 0.25 =…

Q: If a seed is planted, it has a 95% chance of growing into a healthy plant. If 7 seeds are planted,…

A: The probability that the plant doesn't grow into a healthy plant (p) .

Q: recent survey found that 70% of all adults over 50 wear sunglasses for driving. In a random sample…

A: We have given that  Sample size n = 10 Success of probability p= 0.70 X~binomial ( n , p )

Q: The probability that a randomly selected 40-year-old female will live to be 41 years old is 0.988…

A:

Q: If a seed is planted, it has a 90% chance of growing into a healthy plant. If 10 seeds are planted,…

A: Given that if a seed is planted, the chance of growing into a healthy plant is 90%.

Q: Panera Bread has found that 27% of customers purchase more than one cup of coffee per day from their…

A: We are given the Population proportion of customers who purchase more than 1 coffee per day, P =…

Q: A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just…

A: Givenproportion(p)=0.634sample size(n)=430Mean(μp^)=p=0.634standard…

Q: In 2016, more than 200,000 students took the AP® Statistics exam. Of these students, 14% earned the…

A: From the provided information, 14% earned the highest score of 5 that is p = 0.14 Sample size (n) =…